baber/WOPTO huggingface dataset:
Patent GB-640984-A (GB)
Title: Means for initiating a spark discharge in explosive gases
Inventor: SKELTON JOHN SCOWCROFT
IPC: F23Q3/00
Filed: 1947-01-13
Abstract: 640,984. Switches held set and freed mechanically. MINISTER OF SUPPLY. Jan. 13, 1947, No. 1093. [Class 38(v)] [Also in Group XXIX] Means for initiating a spark discharge in explosive gases, e.g. acetylene and air, comprises a single lever which directly controls both a gas supply valve and the electric current for producing the spark downstream of the valve. The valve 2, Fig. 1, is opened manually by the lever 10, 13, which carries a ratchet 24 engaging a pawl 23 so that the valve is maintained open against a spring 9. The valve is allowed to close when the pawl is released by the operator and at the same time a roller 14 on a lever 11 connected to the lever 10 engages a bridging piece 15, Fig. 2, urging contacts 16, 17, upwards against springs 18, 19, whereby at a time suitably' arranged with regard to the position of the valve with respect to its seat 3, contact is made with fixed contacts 20, 21, and produces a spark in a sparking plug.
Patent GB-639195-A (GB)
Title: Improvements relating to protective systems for polyphase electric motors
IPC: H02H7/09
Filed: 1947-01-13
Abstract: 639,195. Protective cut-out systems; thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 13, 1947, No. 1143. Convention date, Jan. 12, 1946. [Class 38 (v)] A protective system for a three-phase electric motor having an earthed neutral, protects against overloads and the heavy currents in the remaining phases when one phase of the stator becomes open-circuited. The motor has a starconnected stator 1 with windings 2, 3, 4 supplied from a generator 5 via an electromagneticallyoperated switch 6 controlled by stop and start buttons. A fluid-pressure type thermal switch with a bulb 11 and snap-acting diaphragm 14 has its contacts 15 in circuit with the switch operating coil 16. The bulb 11 of the thermal switch is surrounded by a heating coil 10 which is connected between the junction of windings 3, 4 and the earthed end of winding 2. The current in coil 10 is the vector sum of the currents in windings 3, 4 which is equal to that in any one phase and operates the thermal switch to trip the switch 6 under overload conditions. If any one phase becomes opencircuited the current in the coil 10 is equal to the increased current in either of the remaining phases so that the thermal switch is operated and opens switch 6.
Patent GB-507861-A (GB)
Title: A lock mechanism for full-automatic or semi-automatic guns
IPC: F41A3/46
Filed: 1938-01-13
Abstract: 507,861. Automatic firearms. STEYRDAIMLER-PUCH AKT.-GES., and DlCHTL, E. Jan. 13, 1938, No. 1157. [Classes 92 (ii) and 119] An automatic or semi-automatic gun has the firing pin 3 coupled to a striker 4 which is actuated bv a gas piston 7, against the pressure of a return-spring 6; Locking bolts 8 are adapted to be displaced in a transverse direction as controlled by cam surfaces 15, 12. When the guri is fired, the striker 4 moves rearwardly, under the influence of the gas plunger 7, for a short distance, the surface 9 on the striker maintaining the bolts 8 in such position that they lock the breech block 2 to the breech casing 1. When the recesses 13 in the striker reach the plane of the bolts, the reaction at 12 snaps the bolts into the recesses 13 whereby the striker is locked to the breech block; but the breech block is released from the casing 1. The breech block and striker then move together until, at the end of the return movement under the influence of the spring 6, the bolts snap into the recesses in the casing 1 to lock the breech block and release the striker, which thereupon continues to move forward alone, to fire the fresh cartridge.
Patent GB-1004227-A (GB)
Title: Matrix drying and forming apparatus
IPC: B41D1/00
Filed: 1964-01-10
Abstract: 1,004,227. Stereotype matrices. STA-HI CORPORATION. Jan. 10, 1964 [Jan. 10, 1963], No. 1191/64. Heading B6C. A machine 10, Fig. 1, for drying stereotype matrices comprises a supporting structure 12, a generally hemicylindrical drying portion 20 provided with a substantially hemicylindrical frame 46 and supported on the structure 12, an upper generally hemicylindrical drying portion 22 mounted on the structure 12 and adapted to be moved into a closed position in engagement with the portion 20 in order to dry a matrix located therebetween, and yieldable bracing means interconnecting circumferentially spaced portions of the frame so as to maintain it in a substantially hemicylindrical configuration while allowing flexure of its longitudinal edges when the portion 22 is opened or closed. In the embodiment of Fig. 2 the portion 20 is mounted on rollers 42 which engage a track 44 on the structure 12 and the bracing means 50 comprises tracks 52 which are secured to one end of each of two bands 48 forming part of the frame 46 and are engaged by rollers 58 supported by arms 56 connected to the opposite ends of the bands. In the embodiments of Figs. 6 and 7 (not shown) the frame is divided into pivoted sections adapted to be moved by at least one pneumatic cylinder device. The portion 22 is provided on its inner surface with a perforated wall 24 and the portion 20 carries a perforated metal sheet 68, a metal sheet 70, a heat-insulating blanket 72 and a cover 74. The main vacuum pump motor 28 is initially energized to seat a wet matrix in the portion 22, the portion 22 is closed, the motor is stopped, shrink and main timers are started, and the pump motor is restarted. The portions 22 and 20 carry strip electrical resistance heaters 40, 62 respectively which are controlled by a thermostat 104 in the portion 22, the output of the heaters 40 being lower than that of the heaters 62. The heaters 62 are resiliently mounted with respect to the bands 48 on leaf springs 64.
Patent GB-157289-A (GB)
Title: Improvements in machines for stamping and closing envelopes
IPC: B43M5/04
Filed: 1921-01-10
Abstract: 157,289. Hofmann, H. Nov. 22, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Stamp-applying; closing envelopes. - Comprises a machine for sealing envelopes and affixing postage stamps thereto. An envelope is laid face downwards on a table 140, and a wetted stamp placed mechanically on an affixing- plunger 63 is pressed thereby on to the envelope, which is supported by a resilient abutment 141. Rolls of stamps of different denominations are placed in pockets in a sliding carriage 23 which is adjustable by a hand-wheel 44 to bring the required strip of stamps into alignment with the stamp-feeding mechanism. The free end of the selected strip is supported between open clamping-bars 17, 18, and grippers 30, 31 are advanced to seize it by levers actuated from a crank 34 on a shaft 14 which is driven through worm-gearing 10 from a shaft 7 connected to an electric motor 5, an automatic clutch 8 stopping the shaft 14 after one revolution. The lower gripping-jaw 31 is pivoted to a slide 28 and is raised to grip the stamp strip by a lever 41 pivoted to the slide, when this lever pushes the slide in the direction of feed, the jaw dropping when the slide is pulled in the opposite direction. When a stamp has been drawn beyond the clamping-bars 17, 18, these are operated to clamp the stamp strip by a lever 46 actuated by a cam on the shaft 14, and the grip of the jaws 30, 31 on the strip is increased by a strut pivoted to the lower jaw encountering an obstacle, and the end stamp is thereby torn from the strip. A pair of spring fingers 70 carried by a cam-operated slide then take the stamp from the jaws 30, 31 and deposit it on the affixing-plunger 63 where it is wetted by a swinging pad, and the plunger is actuated by a spring, after being released by a cam, to affix the stamp. The envelope is then carried forward by mechanism operated through worm gearing from the shaft 7 and controlled by an automatic clutch. The flap of the envelope first rests on a plate 73 which is raised to press it on a wet sponge 135 and is lowered again, a roller 108 carried by arms 106 descending to cooperate with a roller 77 to feed the envelope to a second pair of feeding-rollers 119, 121. Before reaching these, the flap is turned upwards by a pivoted plate 125, which is forced down by the body of the envelope to allow the fold of the envelope to enter between the rollers 119, 121, the flap being thereby sealed down and the envelope delivered down a shoot 126.
Patent GB-1444013-A (GB)
Title: Bulbholder assemblies for lamp units
IPC: F21V19/00
Filed: 1973-01-09
Abstract: 1444013 Vehicle lamps LUCAS ELECTRICAL Ltd 18 Dec 1973 [9 Jan 1973] 1208/73 Heading F4R [Also in Division H2] A bulb holder assembly 11 comprises a metal plate 12 with two holes 14, 15 to receive bulbs (not shown), and a slot 16 in the plate extending to the edge to receive two electrically insulating members 18, 19. These members are preferably grooved to accommodate parts of the plate and are of stepped form so that they have mutually engaging surfaces 22, 221; 23, 23<SP>1</SP>; and 24, 24<SP>1</SP>. Contact elements 33 are placed in recesses in these surfaces so that they extend to lie opposite the holes 14, 15, preferably one on one side of the plate and one on the other. The circuit is completed via the metal plate 12 and the tags 36 which hold and contact the bulbs. Contact to the plate 12 is via riveted tag 37. In the embodiment shown there are three contacts, the third lying opposite the hole 15. A further embodiment provides keys and keyways on the insulating members 18, 19 to prevent separation of the engaging surfaces, 24, 24<SP>1</SP> for example. The bulb-holder assembly may form part of a lamp unit which also comprises a moulded transluscent lens assembly 10 which is secured by screws or the like (not shown) directly to the rear of a vehicle such as a caravan without the usual base-plate. The bulb-holder is held at each end in a recess formed in an integral internal projection 13 in the lens, tags 17 resist withdrawal of the bulb-holder.
Patent GB-974961-A (GB)
Title: Radiant energy converter
IPC: H01J1/34
Filed: 1962-01-10
Abstract: 974,961. Electric discharge tubes. WESTING- HOUSE ELECTRIC CORPORATION. Jan. 10, 1963 [Feb. 9, 1962], No. 1224/63. Heading H1D. A photo-electric power generator comprises a cathode which emits electrons in response to incident radiation, an anode for collecting these electrons, and a reflector positioned beyond the anode to reflect incident radiation not utilized by the cathode, back thereto. As shown, the device includes two electrically-connected cathode layers 15, 17, layer 17 being backed by a reflecting layer 19, so that light passing through layers 15, 17 is reflected back through these layers to give increased electron emission. The cathode layers may be photo-emissive and/or thermionically emissive and may be of caesium antimonide, caesium bismuthide or caesium-  sodium-potassium antimonide, and the reflecting layer of aluminium or nickel. These layers may be spaced from the envelope 11, 12 instead of being formed as coatings thereon. The anode comprises a grid 23 spaced from cathode layers 15, 17 by insulators 21 of magnesium fluoride or silicon monoxide, and having low work function collecting surfaces 25 of silveroxygen-caesium which are concave or V- sectioned so as to be shielded from incident radiation. Alternatively, the anode collecting surfaces may be planar and shielded by extended insulators 21. Specification 916,402 is referred to.
Patent GB-849143-A (GB)
Title: Improvements in or relating to high-temperature apparatus
Inventor: BATTLE NORMAN
IPC: G21C11/08
Filed: 1958-01-13
Abstract: 849,143. Nuclear reactors. ROLLS-ROYCE Ltd. Jan. 8, 1959 [Jan. 13, 1958], No. 1235/58. Class 39(4). In a reactor with a bank of coolant tubes 10, pairs of main heades at either end of the bank are connected by header tubes 20 each connected to a series of tubes 10. The header tubes have one or more expansion bends between each point of connection of a coolant tube, Fig. 3. The outermost coolant tubes are supported at 18d to prevent bending by expansion of the header tubes. The reactor has an aluminium tank containing D 2 O moderator surrounded by a steel thermal shield 18a and a tank of light water as reflector. The coolant tubes, Fig. 2, have double walled aluminium centre parts and steel ends ; steam cools the fuel 11 and CO 2  cools the liner 13. The reactor is controlled by varying the moderator level in the tank or in tubes through the tank.
Patent GB-165132-A (GB)
Title: Improvements in and relating to screw propellers
IPC: B63H3/06
Filed: 1920-01-16
Abstract: 165,132. Vessey, E. A. Jan. 16,1920. Screw propellers.-Relates to variable-pitch marine propellers in which the blades are adjusted by a turning and sliding movement under controlled centrifugal forces and a sliding ring on the propeller shaft, and consists in actuating the ring without thrust bearings running in water. Further cam elements for actuating the sliding ring and a reduction gear may be arranged in the propeller boss or in the ship, and in actuating the gear by an electric motor in the boss or in the ship or by a steam-engine on the ship. The hub bosses receive sockets 2 on the blades 1, Fig. 1, which have screw elements 3 connected by adjustable tie members 15 with a ring 7 slidable on the boss spigot 6. A balancing-spring 25 is fitted over the sleeve 7 which also has an extension 20 to which the control rod 22 is attached. Inboard, the rod 22 has a cross-arm 29. Fig. 3, which extends through slots 27 in the hollow propeller shaft 26, and is pinned to a sleeve 32 capable of sliding on or rotating with the shaft. For moving the sleeve 32 and rod axially, a non-rotating cam 33 is placed adjacent to a second cam 36, which rotates in the fixed bracket 35 but does not slide. This cam can be rotated by gears 39, 38 by an electric motor 44 or other prime mover. In a modification, the motor 52, Fig. 5, is attached to the hub, and the epicyclic gears 51 and cam-sleeves are placed on the boss. Electric leads 55 pass from the motor, through the propeller shaft to a number of copper rings thereon and thence by slip rings and leads to an inboard control position. In a further modification, the electric motor on the boss is replaced by a differential gear which is actuated by a prime mover on the deck, or by hand, through a shaft and gearing attached to the rudder post. The sliding collar may also be directly acted by hydraulic rams, or by a hydraulic motor in the hub. Where no change of pitch is required, the screw members on the blades are replaced by straight keys so that only the diameter of the propeller is altered. Specifications 130,349 and 132,316 are referred to.
Patent GB-553717-A (GB)
Title: Improvements in or relating to composite moulded articles formed of fibrous material and a binder
IPC: B32B27/00
Filed: 1942-02-05
Abstract: 553,717. Insulation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 5, 1942, No. 1518. Convention date, Feb. 5, 1941. [Class 36] [Also in Group'V] The insulating connecting block of a circuitbreaker comprises inclined laminations 23 disposed at an angle to the horizontal, and shapemaking laminations 14 which may be replaced by chopped or macerated fibrous material plus binder. The block is machined at 16 and 18 to receive the fixing bolts. The laminations 23 consist of fibrous sheets with a binder and are consolidated with the laminations 24. The fibrous material may be paper, cotton, silk, rayon, glass fibre or wood. The binder may be a synthetic resin of the phenolic, urea, thiourea or polyvinyl alcohol type.
Patent GB-225089-A (GB)
Title: Improvements in or relating to bearings for tubs or the like as used in collieries
IPC: B61D11/00
Filed: 1924-01-19
Abstract: 225,089. Wilcock, J., and Clegg, R. Jan. 19, 1924. Vehicle-axle bearings. -A. bearing for tubs, colliery corves and the like has a detachable axle-retaining stirrup b secured on fixed studs or projections e on the pedestal a by washers f and split pins g.
Patent GB-366259-A (GB)
Title: Improvements relating to golf bags
IPC: A63B55/57
Filed: 1931-01-16
Abstract: 366,259. Golf bags. ALLEN, S. V., The Rectory, Marston, near Stafford, and FORD, H., Lightbounds, Uttoxeter, Staffordshire. Jan. 16, 1931, No. 1540. [Class 132 (ii).] In a golf bag of the kind provided with hinged and spring- controlled legs B that are retained in inoperative position by a clip L located near the foot of the bag, the legs are connected by a frictional pivotal joint to a bracket F that is hinged to the bag near its upper end, is provided with a carrying handle J and is constrained by a spring K to move angularly away from the bag when the legs are released from the clip. The upper ends of the legs terminate in coaxial discs N, Fig. 2, mounted on a pivot C and held in frictional contact by a plate Q. The coaxial discs may be replaced by sectors embracing the pivot. A spring M tends to splay the legs apart.
Patent GB-129573-A (GB)
Title: Improvements in Oil Separators.
Inventor: CHAMBERLAIN WILLIAM ADIN
IPC: B04B1/14
Filed: 1919-01-23
Abstract: 129,573. Chamberlain, W. A. Jan. 23, 1919. Density separators.-A separator drum c of double-conical form is mounted within a casing a on a hollow shaft b, and valves h for discharging the heavier separated materials are mounted within the drum, and are adjusted by means of a shaft t and bell-crank levers r operated from without the rotary member whilst the machine is running. The heavier constituent is discharged through the valves h to the casing and the escape pipe m. The lighter liquid is led by the pipes e to the chamber a<4> and the pipe p. The mixture enters the separator drum through the ports b<1> in the hollow shaft b to which it is led by the tube d. The tube d has ports d<1> communicating with the sump a' through openings a<2>.
Patent GB-912570-A (GB)
Title: Improvements in or relating to air conditioning apparatus
IPC: F24F13/26
Filed: 1960-01-18
Abstract: 912,570. Ventilators. AIR CONTROL INSTALLATIONS Ltd., and SMITH, A. W. Jan. 18, 1961 [Jan. 18, 1960], No. 1741/60. Class 137. Air conditioning apparatus of the kind embodying a filter and diffuser comprises a central inlet leading to an inlet chamber, an outlet extending round the periphery of the apparatus and filter means defining and encircling the inlet chamber. As shown, an inverted cupshaped member 14 having a central aperture 16 is provided with a flange 17 which co-operates with an air supply conduit 10, and is spaced apart from a circular plate 21 of the same diameter by means of bolts 35 with knurled heads 36, to define a cylindrical outlet 23. The filter 26 which comprises a strip of air permeable substance bent in a zig-zag manner and curled into a closed loop around an inlet chamber 20 is located between sheets 27 and 28, the former having a central aperture 30 with a lip 31 cooperating with a gasket surrounding the conduit 10. The latter communicates with the inlet chamber 20 which contains a perforated cylindrical wall 32 extending between sheets 27 and 28. The unit is attached to the ceiling 12 by means of a centrally apertured support 15. Plate 21 has a central dished portion 22 and the edges of plates 14 and 21 are rolled around strengthening rings 24, 25. The filter may be constructed from a thin sheet, e.g. 0.020 to 0.25 inches, of tissue paper, asbestos paper or cellulose sheet supported by wire mesh. Alternatively an annulus of low density material e.g. glass or metal fibres may be employed. The cupshaped member 14 may be replaced by an annular trough having an inner perforated wall. The unit may be polygonal, e.g. rectangular.
Patent GB-1189601-A (GB)
Title: A Method of Affixing a Strain Gauge to a Specimen Which is to be Tested.
IPC: G01L1/22
Filed: 1968-01-11
Abstract: 1,189,601. Jointing. SIEMENS A.G. 11 Jan., 1968 [12 Jan., 1967], No. 1742/68. Heading B3V. A method of securing a strain gauge to a specimen comprises employing glass as a bonding agent. The glass may form a layer to which the gauge is secured by a thin layer of a synthetic resin bonding agent, or the gauge may be sealed in the glass. In an example of the latter method, a suspension of a low melting-point glass aneal in a liquid, e.g. a paraffin, is applied to the specimen which is then heated to the boiling-point of the liquid, i.e. about 320‹ C., to evaporate the liquid. Further heat melts and refines the glass before the gauge is applied. Alternatively, after cooling, the glass may be lapped to level the surface for securing the gauge by a synthetic resin adhesive. Layer thicknesses are given.
Patent GB-102287-A (GB)
Title: Improved Apparatus for Cleaning the Tubes of Steam Boilers.
IPC: F28G3/16
Filed: 1916-02-05
Abstract: 102,287. Reiter & Gruenwald. Feb. 5, 1916. Addition to 332/15. Cleaning, fluid-pressure processes for.-To enable the fire-tube cleaning apparatus described in the parent Specification to be used for cleaning water-tube boilers, a tubular support 6 is fitted in the boiler, another cleaner 5 is suspended from it by hooks 7, Fig. 2; or the cleaner may be supported on a flanged sleeve 11, Fig. 3, inserted into an orifice in the wall. The preferred form of suction nozzle is shown in Fig. 4.
Patent GB-484616-A (GB)
Title: Process for the manufacture of leavened baked goods
IPC: A21D2/04
Filed: 1937-01-21
Abstract: Bread, biscuits, rolls, cake and the like are leavened by the conjoint action of hydrogen peroxide, yeast and an alkaline reacting material, which may be one or a combination of several such substances, a dough having a pH value of from about 5,9 to 8,5 being obtained.  More particularly, a pH value of about 6,5 to 7,5 for cakes, and of about 5,9 to 7,3 for biscuits, is desirable.  Examples of materials used are sodium carbonate, sodium bicarbonate, di- and tri-sodium phosphate, sodium hydroxide, corresponding magnesium salts and corresponding potassium and ammonium compounds.  The peroxide solution used is about 30 per cent hydrogen peroxide and is preferably stabilized as described in Specifications 405,532 and 409,361, [both in Group III].  From 0,3 to 4,0 per cent, and preferably from 0,4 to 0,8 per cent of 30 per cent hydrogen peroxide, based upon the total weight of the dough, is added.  The yeast is used in the proportions of about 0,25 to 1,0 per cent and preferably 0,5 per cent.  The yeast and alkaline reacting material may be added prior to, or during, the formation of a batter or dough, and the peroxide is preferably mixed with a part of the liquid, such as milk, and added at the end of the mixing. The proving of the dough is allowed to continue until a potassium iodide test indicates that all the peroxide is decomposed.  An example of suitable ingredients for a cake mixture is given. British Specification 433,471 and U.S.A. Specification 989,189 are referred to.  The Specification as open to inspection under Sect. 91 describes the leavening of baked products with hydrogen peroxide and yeast, and with hydrogen peroxide and an alkaline reacting material. This subject-matter does not appear in the Specification as accepted.